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An large transport first officer overshot his altitude during descent when he failed to set his altimeter to the local setting. Captain bemoans the fact that he and the so did not catch this error before the overshoot.
| Attributes | |
| ACN | 398490 |
| Time | |
| Date | 199803 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | msl bound lower : 10700 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : commercial pilot : instrument pilot : flight engineer |
| Experience | flight time last 90 days : 50 flight time total : 15000 flight time type : 3000 |
| ASRS Report | 398490 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : became reoriented |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
As pilot at controls, the first officer failed to reset his altimeter to local qnh passing FL180. This was not observed by myself or the so as it should have been. This resulted in a descent to 10700 ft instead of 11000 ft as requested by ord approach. Despite having completed the approach descent checklist, the error was not observed until my third command to level at 11000 ft. I believe this was caused due to fatigue on my part, a lack of currency on the part of the first officer, and the fact that the so was new. I was on my fifth consecutive day on duty, my third day of 12 hours duty. The first officer was making only his second flight of the month, and the so is a new hire.
Original NASA ASRS Text
Title: AN LGT FO OVERSHOT HIS ALT DURING DSCNT WHEN HE FAILED TO SET HIS ALTIMETER TO THE LCL SETTING. CAPT BEMOANS THE FACT THAT HE AND THE SO DID NOT CATCH THIS ERROR BEFORE THE OVERSHOOT.
Narrative: AS PLT AT CTLS, THE FO FAILED TO RESET HIS ALTIMETER TO LCL QNH PASSING FL180. THIS WAS NOT OBSERVED BY MYSELF OR THE SO AS IT SHOULD HAVE BEEN. THIS RESULTED IN A DSCNT TO 10700 FT INSTEAD OF 11000 FT AS REQUESTED BY ORD APCH. DESPITE HAVING COMPLETED THE APCH DSCNT CHKLIST, THE ERROR WAS NOT OBSERVED UNTIL MY THIRD COMMAND TO LEVEL AT 11000 FT. I BELIEVE THIS WAS CAUSED DUE TO FATIGUE ON MY PART, A LACK OF CURRENCY ON THE PART OF THE FO, AND THE FACT THAT THE SO WAS NEW. I WAS ON MY FIFTH CONSECUTIVE DAY ON DUTY, MY THIRD DAY OF 12 HRS DUTY. THE FO WAS MAKING ONLY HIS SECOND FLT OF THE MONTH, AND THE SO IS A NEW HIRE.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.